Device is protected with extra seals to prevent failures due to any kind of weather.

3.weight

145g

181g

163g

157g

Best

Palm Phone

62.5g

4.thickness

10.8mm

13.25mm

7.9mm

7.7mm

Best

Asus Zenfone AR 64GB

4.6mm

5.width

67mm

72.74mm

71.9mm

72.6mm

Best

Vertu Signature for Bentley

42mm

6.height

133mm

141.9mm

148.9mm

150.9mm

Best

Motorola FlipOut

67mm

relevant

Display

1.resolution

540 x 960px

480 x 854px

1440 x 2880px

1440 x 2560px

Best

Sony Xperia H8541

2160 x 4320px

2.has branded damage resistant glass

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

Damage resistant glass (such as Corning Gorilla Glass or Asahi Dragontrail Glass) is thin, lightweight, and can withstand high levels of force.

3.pixel density

245ppi

218ppi

565ppi

534ppi

Best

Sony Xperia H8541

847ppi

4.screen size

4.5"

4.5"

5.7"

5.5"

The bigger the screen size is, the better the user experience.

Best

Huawei Mate 20 X

7.2"

5.every pixel has three subpixels

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

The device has a display with three full subpixels per pixel, resulting in a sharp and crisp picture. Pixels in some displays (like AMOLED) share one subpixel to preserve space. This can result in a less crisp, slightly blurred image.

6.Has an AMOLED display

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

AMOLED displays, also known as active matrix OLED displays, offer higher refresh rates and consume less power than other types of displays.

relevant

Performance

1.Has integrated LTE

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

The system on a chip (SoC) has an integrated LTE cellular chip. LTE is capable of downloading at faster speeds than older, 3G technology.

2.Has integrated graphics

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

With integrated graphics you don’t need to buy a separate graphics card.

3.Uses big.LITTLE technology

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

Using big.LITTLE technology, a chip can switch between two sets of processor cores in order to maximise performance and battery life. For example, when playing a game the more powerful cores will be used to increase performance, whereas checking email will use the less powerful cores to maximise battery life.

4.Has out-of-order execution

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

Out-of-order execution is used in CPUs to make use of instruction cycles that would normally be wasted due to delays.

5.RAM

1GB

1GB

4GB

4GB

Best

Vivo NEX 2

10GB

6.Has AES

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

AES is used to speed up encryption and decryption.

relevant

Cameras

1.megapixels

5MP

5MP

13MP & 13MP

12MP

Best

Huawei Mate 20 X

40 & 20 & 8MP

2.has built-in optical image stabilization

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

Optical image stabilization uses gyroscopic sensors to detect the vibrations of the camera. The lens adjusts the optical path accordingly, ensuring that any type of motion blur is corrected before the sensor captures the image.

3.video recording (main camera)

1080 x 30fps

1080 x 60fps

2160 x 30fps

2160 x 30fps

The maximum resolution available for videos shot with the main camera. Although it may be possible to choose among other frame rates, those recordings usually have lower resolutions.

Best

Crosscall Trekker-X4

1080 x 120fps

4.front camera megapixels

1.3MP

2MP

5MP

5MP

Best

Wiko View2 Pro

16 & 16MP

5.Has laser autofocus

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

A laser autofocus system quickly determines the depth of the subject you want to focus on, allowing you to take photos much faster.

For example

Huawei Honor Magic 2

6.Has a dual-lens (or multi-lens) main camera

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

A dual-lens camera captures two images and overlays them. This technology creates sharper images, especially in low light conditions, and allows you to use effects such as softening the background.

relevant

Audio

1.has stereo speakers

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

Devices with stereo speakers deliver sound from independent channels on both left and right sides, creating a richer sound and a better experience.

2.has a socket for a 3.5 mm audio jack

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

With a standard mini jack socket, you can use the device with most headphones.

3.has a radio

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

It works as an FM radio with included headsets

4.has dedicated media keys

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

The music player can be blindly used.

For example

ZTE Nubia X

relevant

Battery

1.battery power

1800mAh

3000mAh

3300mAh

3600mAh

Best

Energizer Power Max P16K Pro

16000mAh

2.wireless charging

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

The manufacturer offers a branded wireless charging kit. To charge the device, you simply put it down on its charging base.

3.has a removable battery

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

The battery is removable and can be replaced by the user if broken.

For example

Blu Advance L4

4.Supports fast charging

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

Fast charging technologies, like Qualcomm’s Quick Charge or MediaTek’s Pump Express, are used to reduce the time it takes to charge a device. For example, with Quick Charge 3.0, the battery can be charged to 50% in just 30 minutes.

5.has a battery level indicator

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

An indicator shows you when the device has low battery.

6.has a rechargeable battery

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

The battery can be recharged and used over again.

relevant

Features

1.Is a multi-user system

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

2.Has offline voice recognition

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

Offline voice recognition enables you to perform voice actions, like dictating texts or using various voice commands, without an internet connection.

3.Supports Java

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

4.Allows app installs on the device's external storage

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

5.Is free and open source

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

Anyone is free to use, copy, study, and change the software in any way, and the source code is openly shared so that people are encouraged to voluntarily improve the design of the software.

6.Has sharing intents

BLU D440

Cat S30

LG G6 Plus

Samsung Galaxy S7 edge (Exynos 8890 Octa)

If an app has sharing capabilities and the developers have indicated it, the app will automatically appear in your list of sharing options. Some OS’s limit direct sharing options to a select few apps, which means you have to open apps separately in order to upload the files you want to share.